<template>
  <div class="app-container">
    <el-form :model="queryParams" ref="queryForm" size="small" :inline="true" v-show="showSearch">
      <el-form-item :label="`${getTitel}名称`" prop="departmentName">
        <el-input
            v-model="queryParams.departmentName"
            :placeholder="`请输入${getTitel}名称`"
            clearable
            @keyup.enter.native="handleQuery"
        />
      </el-form-item>
      <el-form-item>
        <el-button type="primary" icon="el-icon-search" size="mini" @click="handleQuery">搜索</el-button>
        <el-button icon="el-icon-refresh" size="mini" @click="resetQuery">重置</el-button>
      </el-form-item>
    </el-form>

    <el-row :gutter="10" class="mb8">
      <el-col :span="1.5">
        <el-button
            type="primary"
            plain
            icon="el-icon-plus"
            size="mini"
            @click="handleAdd"
        >新增
        </el-button>
      </el-col>
      <el-col :span="1.5">
        <el-button
            type="info"
            plain
            icon="el-icon-upload2"
            size="mini"
            @click="handleImport"
        >导入
        </el-button>
      </el-col>
      <el-col :span="1.5">
        <el-button v-if="false"
            type="warning"
            plain
            icon="el-icon-download"
            size="mini"
            @click="handleExport"
        >导出
        </el-button>
      </el-col>
      <el-col :span="1.5">
        <el-button
            type="info"
            plain
            icon="el-icon-sort"
            size="mini"
            @click="toggleExpandAll"
        >展开/折叠
        </el-button>
      </el-col>
      <right-toolbar :showSearch.sync="showSearch" @queryTable="getList"></right-toolbar>
    </el-row>

    <el-table
        v-if="refreshTable"
        v-loading="loading"
        :data="deptList"
        row-key="id"
        :default-expand-all="isExpandAll"
        :tree-props="{children: 'departmentTreeVOList', hasChildren: 'hasChildren'}"
    >
      <el-table-column prop="name" :label="`${getTitel}名称`" width="360"></el-table-column>
      <el-table-column prop="sequence" label="排序" width="200"></el-table-column>
      <el-table-column prop="description" label="描述"></el-table-column>
      <el-table-column label="操作" align="center" class-name="small-padding fixed-width">
        <template slot-scope="scope">
          <el-button
              size="mini"
              type="text"
              icon="el-icon-edit"
              @click="handleUpdate(scope.row)"
          >修改
          </el-button>
          <el-button
              size="mini"
              type="text"
              icon="el-icon-plus"
              @click="handleAdd(scope.row)"
          >新增
          </el-button>
          <el-button
              size="mini"
              type="text"
              icon="el-icon-delete"
              @click="handleDelete(scope.row)"
          >删除
          </el-button>
        </template>
      </el-table-column>
    </el-table>

    <!-- 添加或修改部门对话框 -->
    <el-dialog :title="title" :visible.sync="open" width="600px" append-to-body>
      <el-form ref="form" :model="form" :rules="rules" label-width="80px">
        <el-row>
          <el-col :span="24" v-if="form.parentId !== 0">
            <el-form-item :label="`上级${getTitel}`" prop="parentId">
              <treeselect v-model="form.parentId" :options="selectDeptList" :normalizer="normalizer"
                          :placeholder="`选择上级${getTitel}`"
              />
            </el-form-item>
          </el-col>
        </el-row>
        <el-row>
          <el-col :span="12">
            <el-form-item :label="`${getTitel}名称`" prop="departmentName">
              <el-input v-model="form.departmentName" :placeholder="`请输入${getTitel}名称`"/>
            </el-form-item>
          </el-col>
          <el-col :span="12" v-if="typeCollection===1">
            <el-form-item label="负责人" prop="leadingStaffId">
              <el-select v-model="form.leadingStaffId" placeholder="请选择负责人" clearable>
                <el-option
                    v-for="item in userList"
                    :key="item.userId"
                    :label="item.userName"
                    :value="item.userId"
                />
              </el-select>
            </el-form-item>
          </el-col>
        </el-row>
        <el-row>
          <el-col :span="24">
            <el-form-item label="描述">
              <el-input v-model="form.description" type="textarea" placeholder="请输入内容"></el-input>
            </el-form-item>
          </el-col>
        </el-row>
      </el-form>
      <div slot="footer" class="dialog-footer">
        <el-button type="primary" @click="submitForm">确 定</el-button>
        <el-button @click="cancel">取 消</el-button>
      </div>
    </el-dialog>
    <!-- 用户导入对话框 -->
    <el-dialog :title="upload.title" :visible.sync="upload.open" width="400px" append-to-body>
      <el-upload
          ref="upload"
          :limit="1"
          accept=".xlsx, .xls"
          action="https://jsonplaceholder.typicode.com/posts/"
          :disabled="upload.isUploading"
          :on-progress="handleFileUploadProgress"
          :http-request="uploadFile"
          drag
          :show-file-list="false"
      >
        <i class="el-icon-upload"></i>
        <div class="el-upload__text">将文件拖到此处，或<em>点击上传</em></div>
        <div class="el-upload__tip text-center" slot="tip">
          <span>仅允许导入xls、xlsx格式文件。</span>
          <el-link type="primary" :underline="false" style="font-size:12px;vertical-align: baseline;"
                   @click="importTemplate"
          >下载模板
          </el-link>
        </div>
      </el-upload>
    </el-dialog>
  </div>
</template>

<script>
import { addDept, delDept, downtDept, downtDeptTemplate, importDept, listDept, updateDept } from '@/api/system/dept'
import Treeselect from '@riophae/vue-treeselect'
import '@riophae/vue-treeselect/dist/vue-treeselect.css'
import { listUser } from '@/api/system/user'

export default {
  name: 'Dept',
  dicts: ['sys_normal_disable'],
  components: { Treeselect },
  data() {
    return {
      // 遮罩层
      loading: true,
      // 显示搜索条件
      showSearch: true,
      // 表格树数据
      deptList: [],
      // 部门树选项
      deptOptions: [],
      // 弹出层标题
      title: '',
      // 是否显示弹出层
      open: false,
      // 是否展开，默认全部展开
      isExpandAll: true,
      // 重新渲染表格状态
      refreshTable: true,
      // 查询参数
      queryParams: {
        departmentName: undefined,
        typeCollection: this.$route.query.typeCollection ? Number(this.$route.query.typeCollection) : 1
      },
      // 表单参数
      form: {},
      // 表单校验
      rules: {
        parentId: [
          { required: true, message: `上级${this.getTitel}不能为空`, trigger: 'blur' }
        ],
        departmentName: [
          { required: true, message: `${this.getTitel}名称不能为空`, trigger: 'blur' }
        ],
        orderNum: [
          { required: true, message: '显示排序不能为空', trigger: 'blur' }
        ],
        email: [
          {
            type: 'email',
            message: '请输入正确的邮箱地址',
            trigger: ['blur', 'change']
          }
        ],
        phone: [
          {
            pattern: /^1[3|4|5|6|7|8|9][0-9]\d{8}$/,
            message: '请输入正确的手机号码',
            trigger: 'blur'
          }
        ]
      },
      userList: [],
      // 用户导入参数
      upload: {
        // 是否显示弹出层（用户导入）
        open: false,
        // 弹出层标题（用户导入）
        title: '',
        // 是否禁用上传
        isUploading: false
      },
      typeCollection: this.$route.query.typeCollection ? Number(this.$route.query.typeCollection) : 1
    }
  },
  computed: {
    selectDeptList() {
      return [{
        departmentTreeVOList: this.deptList,
        id: -1,
        name: `顶级${this.getTitel}`
      }]
    },
    getTitel() {
      return this.typeCollection === 1 ? '部门' : '分类'
    }
  },
  created() {
    this.getList()
    this.getUsertList()
  },
  methods: {
    /** 查询部门列表 */
    getList() {
      this.loading = true
      listDept(this.queryParams).then(response => {
        this.deptList = response.data
        this.loading = false
      })
    },
    getUsertList() {
      listUser({
        curPage: 1,
        pageSize: 500
      }).then(response => {
            this.userList = response.data.records
          }
      )
    },
    /** 转换部门数据结构 */
    normalizer(node) {
      if (node.departmentTreeVOList && !node.departmentTreeVOList.length) {
        delete node.departmentTreeVOList
      }
      return {
        id: node.id,
        label: node.name,
        children: node.departmentTreeVOList
      }
    },
    // 取消按钮
    cancel() {
      this.open = false
      this.reset()
    },
    // 表单重置
    reset() {
      this.form = {
        id: undefined,
        parentId: undefined,
        departmentName: undefined,
        leadingStaffId: undefined
      }
      this.resetForm('form')
    },
    /** 搜索按钮操作 */
    handleQuery() {
      this.getList()
    },
    /** 重置按钮操作 */
    resetQuery() {
      this.resetForm('queryForm')
      this.handleQuery()
    },
    /** 新增按钮操作 */
    handleAdd(row) {
      this.reset()
      if (row) {
        this.form.parentId = row.id
      }
      this.open = true
      this.title = `添加${this.getTitel}`
    },
    /** 展开/折叠操作 */
    toggleExpandAll() {
      this.refreshTable = false
      this.isExpandAll = !this.isExpandAll
      this.$nextTick(() => {
        this.refreshTable = true
      })
    },
    /** 修改按钮操作 */
    handleUpdate(row) {
      this.reset()
      this.form = {
        departmentName: row.name,
        parentId: row.parentId,
        id: row.id,
        leadingStaffId: row.leadingId,
        description: row.description
      }
      this.open = true
      this.title = `修改${this.getTitel}`
    },
    /** 提交按钮 */
    submitForm: function() {
      this.$refs['form'].validate(valid => {
        if (valid) {
          if (this.form.id) {
            updateDept({ ...this.form, typeCollection: this.typeCollection }).then(response => {
              this.$modal.msgSuccess('修改成功')
              this.open = false
              this.getList()
            })
          } else {
            addDept({ ...this.form, typeCollection: this.typeCollection }).then(response => {
              this.$modal.msgSuccess('新增成功')
              this.open = false
              this.getList()
            })
          }
        }
      })
    },
    /** 删除按钮操作 */
    handleDelete(row) {
      this.$modal.confirm('是否确认删除名称为"' + row.name + '"的数据项？').then(function() {
        return delDept([row.id])
      }).then(() => {
        this.getList()
        this.$modal.msgSuccess('删除成功')
      }).catch(() => {
      })
    },
    /** 导入按钮操作 */
    handleImport() {
      this.upload.title = '用户导入'
      this.upload.open = true
    },
    // 文件上传中处理
    handleFileUploadProgress(event, file, fileList) {
      this.upload.isUploading = true
    },
    /** 下载模板操作 */
    importTemplate() {
      downtDeptTemplate().then(res=>{
        let url = window.URL.createObjectURL(new Blob([res]))
        let link = document.createElement('a')
        link.style.display = 'none'
        link.href = url
        link.setAttribute('download', `${this.getTitel}导入表格模板.xls`)
        document.body.appendChild(link)
        link.click()
        document.body.removeChild(link) //下载完成移除元素
        window.URL.revokeObjectURL(url) //释放掉blob对象
      })
    },
    uploadFile(e) {
      let formdata = new FormData()
      formdata.append('file', e.file)
      importDept(formdata).then(response => {
        this.$modal.msgSuccess('导入成功')
        this.upload.open = false
        this.upload.isUploading = false
        this.$refs.upload.clearFiles()
        this.getList()
      })
    },
    handleExport() {
      // this.download('/department/excel/export', this.queryParams, `${this.getTitel}表.xlsx`)
      downtDept().then(res=>{
        let url = window.URL.createObjectURL(new Blob([res]))
        let link = document.createElement('a')
        link.style.display = 'none'
        link.href = url
        link.setAttribute('download', `${this.getTitel}表.xls`)
        document.body.appendChild(link)
        link.click()
        document.body.removeChild(link) //下载完成移除元素
        window.URL.revokeObjectURL(url) //释放掉blob对象
      })
    }
  }
}
</script>
